* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Arial, sans-serif;
            background: #f9fbfd;
            color: #1a1a2e;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #0057b3;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #ff6b00;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0a1f3e 0%, #1a3a6b 100%);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f5af19, #f12711);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 12px rgba(245, 175, 25, 0.3);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: #f5af19;
            font-size: 1.6rem;
        }
        .my-logo a {
            color: inherit;
            -webkit-text-fill-color: inherit;
            background: inherit;
            text-decoration: none;
        }
        .my-logo a:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-list li a {
            color: #e0e9f5;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.25s;
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-list li a:hover {
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }
        .nav-list li a i {
            font-size: 0.8rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .breadcrumb {
            background: #eef3f8;
            padding: 10px 0;
            border-bottom: 1px solid #dce5ed;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            font-size: 0.85rem;
            color: #3a4a5e;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            margin-right: 10px;
            color: #8a9aa8;
        }
        .breadcrumb ol li a {
            color: #0057b3;
        }
        .breadcrumb ol li a:hover {
            color: #ff6b00;
        }
        .breadcrumb ol li strong {
            color: #1a2a3e;
        }
        main {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #0a1f3e;
            border-left: 6px solid #f5af19;
            padding-left: 20px;
        }
        .article-body h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 48px 0 18px;
            color: #0a1f3e;
            border-bottom: 3px solid #e8edf4;
            padding-bottom: 8px;
        }
        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 32px 0 14px;
            color: #1a3a6b;
        }
        .article-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 24px 0 10px;
            color: #2a4a7b;
        }
        .article-body p {
            margin-bottom: 18px;
            color: #2a3a4e;
        }
        .article-body strong {
            color: #0a1f3e;
        }
        .article-body .highlight-box {
            background: #eef6ff;
            border-left: 5px solid #f5af19;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 28px 0;
        }
        .article-body .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .article-body ul,
        .article-body ol {
            margin: 0 0 22px 24px;
            color: #2a3a4e;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body .feature-img {
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            margin: 32px 0;
            overflow: hidden;
        }
        .article-body .feature-img img {
            width: 100%;
            object-fit: cover;
        }
        .article-body .feature-img figcaption {
            background: #f0f4fa;
            padding: 10px 16px;
            font-size: 0.85rem;
            color: #4a5a6e;
            text-align: center;
        }
        .article-body .table-wrap {
            overflow-x: auto;
            margin: 28px 0;
            border-radius: 12px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            min-width: 600px;
        }
        .article-body table th {
            background: #0a1f3e;
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        .article-body table td {
            padding: 10px 16px;
            border-bottom: 1px solid #e0e8f0;
        }
        .article-body table tr:nth-child(even) td {
            background: #f6f9fc;
        }
        .article-body table tr:hover td {
            background: #eaf1fa;
        }
        .article-body .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            margin: 20px 0;
            padding: 0;
            list-style: none;
        }
        .article-body .link-list-inline li a {
            background: #eef3f8;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-body .link-list-inline li a:hover {
            background: #dce5ed;
            text-decoration: none;
        }
        .sidebar {
            position: sticky;
            top: 110px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            margin-bottom: 24px;
            border: 1px solid #e8edf4;
        }
        .sidebar-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #0a1f3e;
            margin-bottom: 14px;
            border-bottom: 2px solid #f5af19;
            padding-bottom: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card ul li {
            margin-bottom: 10px;
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            padding: 4px 0;
        }
        .sidebar-card ul li a i {
            color: #f5af19;
            font-size: 0.7rem;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin-bottom: 6px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid #dce5ed;
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            background: #f9fbfd;
        }
        .search-form input:focus {
            border-color: #f5af19;
        }
        .search-form button {
            background: #f5af19;
            border: none;
            border-radius: 30px;
            padding: 0 20px;
            color: #0a1f3e;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-form button:hover {
            background: #e09e0e;
            transform: scale(1.02);
        }
        .interaction-area {
            background: #fff;
            border-radius: 20px;
            padding: 36px 32px;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.04);
            margin-top: 48px;
            border: 1px solid #e8edf4;
        }
        .interaction-area h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #0a1f3e;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid #dce5ed;
            border-radius: 16px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            outline: none;
            transition: border 0.2s;
            background: #f9fbfd;
        }
        .comment-form textarea:focus {
            border-color: #f5af19;
        }
        .comment-form input {
            padding: 10px 16px;
            border: 2px solid #dce5ed;
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            background: #f9fbfd;
            width: 100%;
            max-width: 360px;
        }
        .comment-form input:focus {
            border-color: #f5af19;
        }
        .comment-form .form-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin: 12px 0;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 180px;
        }
        .comment-form button {
            background: #0a1f3e;
            color: #fff;
            border: none;
            padding: 10px 32px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .comment-form button:hover {
            background: #1a3a6b;
            transform: translateY(-2px);
        }
        .rating-stars {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin: 8px 0 16px;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 2rem;
            color: #d0d8e0;
            cursor: pointer;
            transition: color 0.2s, transform 0.15s;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #f5af19;
            transform: scale(1.1);
        }
        footer {
            background: #0a1f3e;
            color: #c8d8e8;
            padding: 40px 0 24px;
            border-top: 4px solid #f5af19;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        @media (max-width: 768px) {
            footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        footer h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 12px;
            font-weight: 600;
        }
        footer a {
            color: #a8c8e8;
        }
        footer a:hover {
            color: #f5af19;
        }
        footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        footer ul li {
            margin-bottom: 6px;
            font-size: 0.9rem;
        }
        footer .copyright {
            border-top: 1px solid #1a3a5a;
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #8aa8c8;
        }
        friend-link {
            display: block;
            background: #0f2a4a;
            padding: 18px 24px;
            border-radius: 12px;
            margin-bottom: 20px;
            border: 1px solid #1a3a5a;
        }
        friend-link::before {
            content: "🌐 Friend Links";
            display: block;
            font-weight: 700;
            color: #f5af19;
            margin-bottom: 10px;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 2px 0;
            font-size: 0.9rem;
        }
        friend-link a::after {
            content: " •";
            color: #4a6a8a;
            margin-left: 6px;
        }
        friend-link a:last-child::after {
            content: "";
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .hamburger {
                display: block;
            }
            .nav-wrapper {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #0a1f3e;
                flex-direction: column;
                padding: 16px 20px;
                display: none;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
                border-top: 2px solid #f5af19;
            }
            .nav-wrapper.open {
                display: flex;
            }
            .nav-list {
                flex-direction: column;
                width: 100%;
                gap: 4px;
            }
            .nav-list li a {
                padding: 10px 16px;
                border-radius: 10px;
                background: rgba(255, 255, 255, 0.04);
            }
            .article-body h1 {
                font-size: 1.8rem;
                padding-left: 14px;
            }
            .article-body h2 {
                font-size: 1.4rem;
            }
            .article-body h3 {
                font-size: 1.15rem;
            }
            .interaction-area {
                padding: 24px 16px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .article-body h1 {
                font-size: 1.5rem;
            }
            .breadcrumb ol {
                font-size: 0.75rem;
                gap: 4px 8px;
            }
            .search-form input {
                font-size: 0.85rem;
                padding: 8px 12px;
            }
            .search-form button {
                padding: 0 14px;
                font-size: 0.85rem;
            }
        }
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #f5af19;
            color: #0a1f3e;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(245, 175, 25, 0.3);
            cursor: pointer;
            transition: transform 0.2s, opacity 0.2s;
            opacity: 0;
            pointer-events: none;
            border: none;
            z-index: 999;
        }
        .back-top.visible {
            opacity: 1;
            pointer-events: all;
        }
        .back-top:hover {
            transform: translateY(-4px) scale(1.05);
        }
        .last-updated {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: #6a7a8e;
            margin-bottom: 20px;
            background: #f0f4fa;
            padding: 8px 16px;
            border-radius: 30px;
            width: fit-content;
        }
        .last-updated i {
            color: #f5af19;
        }